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  #21  
Old 02-13-2019, 11:50 AM
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Quote:
Originally Posted by FourPointEight-is View Post
Damn. I replaced the upper universal steering joint - there is some improvement in steering feel but the core issue is still there.

Can someone have a look at this video and see if they recognise this noise.

Before changing the shaft:

After changing the shaft:

Getting under the car, its very hard to pinpoint where the noise is coming from. The noise/vibration travels, and everything is vibrating. It's not at all obvious.

Edit - I just tried the same steering movements on my friends' Golf GTI - it also does it (electric PS on his one). My 135i also does it.
Wow. I hope that's the mic making it sound that loud. I have a distinct clicking noise similar to the first video. Not a clunk like the second one. And definitely not nearly that loud. I'm going to have to break out the stethoscope I think.
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  #22  
Old 02-13-2019, 04:33 PM
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Whistle

No, it is really that loud. If I gently rock the steering from L to R, nothing is heard. If I do it violently as shown in the video, you can hear the noise. Even then its really loud from outside the cabin. Inside the cabin (even with the windows down) it is quite imperceptible.

When the engine is running (i.e. PS Pump going) then there is no noise.

The thing is there are reports of all makes, models and brands of cars doing this.

Just search "BMW steering knocking"

Here's a thread over on the 3 series forum - Brand new cars. The Dealer is saying this is normal! https://f30.bimmerpost.com/forums/sh....php?t=1428446 One guy had is rack replaced and the noise persists.

1 Series forum - https://www.babybmw.net/forum/viewtopic.php?t=109344 the noise was rectified by tightening a bolt on the rack itself.

Another guy with a 1 series https://www.youtube.com/watch?v=nJP-D9fNeV8 the mounting bolt had come loose!

My 135 is doing the same too.

Anyway, I will get under the car later on and check it out.
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  #23  
Old 02-13-2019, 06:32 PM
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Sounds like a loose bolt or ball joint. I think if somebody gets under and watches they can see the relative motion causing the clunk


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  #24  
Old 02-13-2019, 07:08 PM
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I believe I’ve found the culprit?! Thoughts?

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  #25  
Old 02-14-2019, 07:19 AM
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The part I'm shaking is #1 in this diagram.


Suspect bushings (part # 32316759546) have gone bad, allowing for lateral motion.


But, is this normal behaviour?



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  #26  
Old 02-15-2019, 05:48 AM
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I see the problem: your steering shaft is on the exhaust side of the motor!

Actually somebody replied above that the attachment to the u-joint may be loose as you are showing. No that should be pinned/staked/glued. I dont know the normal attachment to that joint but if mine did that it would have a quick date with some epoxy.

(Remove the pin, disassemble, put in some two part epoxy then reassemble)

It seems like the joint is simply pinned and the circle pin hole is now an oval.

If you want to maintain a non glued connection you could drill it out a bit larger to make the hole round again then put in a new bolt that tightens properly.

(Consider both sae and metric so you can move up the least amount of size.


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  #27  
Old 02-17-2019, 07:49 AM
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Can you (or any of you here) shake yours and see if it moves?

The play is coming from the actual green bit (the part that goes into the firewall), not from the actual pinch bolt area.


The thing is the same kind of "banging" sound happens in my 120i (2011) and a friends Golf GTI as well... so I'm not actually convinced anything is broken.
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  #28  
Old 02-18-2019, 04:07 AM
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I have some bad news for you and some other bad news.

You are indicating that your steering shaft has play. The bad news is it only comes as a complete assembly and the other bad news is it's pricey.

https://www.autohausaz.com/pn/BM-32306762147

Try at different levels of telescope: does your car stupidly retract the steering wheel every drive session? You may have worn out the splines where the shaft telescopes.

If this happened to my car it would be fixed with some thread lock and pulling the goesin/ goesout motor plug.

Your video we couldn't tell what was moving but from your description it was aft of the u-joint leaving the main telescoping shaft.

Without disassembly your could also retroactively install a sheer pin. Soft enough metal it would sheer in an accident and allow the shaft to do its job (collapse) but strong enough to keep the inner and outer shaft at the same relative rotation
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  #29  
Old 02-18-2019, 07:28 PM
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I believe this is my problem. The green bushing seems to wear especially on older high mile cars and allows the shaft to wander considerably which causes that play.

See attachment.

Unfortunately it appears to be a BITCH to get to. There's two of them, one that is visible on the firewall embedded in the rubber boot and one higher up inside the column.

https://www.youtube.com/watch?v=pRettv6DZ7o
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Last edited by FourPointEight-is; 02-18-2019 at 07:34 PM.
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  #30  
Old 02-18-2019, 07:45 PM
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Also found this on NEWTIS.

https://www.newtis.info/tisv2/a/en/e...deo/1VnXzK8a7J

Not sure exactly what the fix should be??
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